Upstream networks
AS18420 NCU-TW National Central University
Unclassified APNIC
Transit
Upstream networks
Networks observed carrying traffic for AS18420: the AS immediately before it in a routing path. Ranked by how many paths showed the relationship, which reflects how widely it is used, not how much traffic crosses it.
| AS | Network | Type | Families | Paths seen |
|---|---|---|---|---|
| AS18185 | 4F, No.114, Sec.1, Chung-Shiao W. Road | Unclassified | IPv4 | 45 |
| AS18423 | RAID Networks Co., Ltd. | Hosting | IPv4 | 13 |
| AS7539 | National Center for High-performance Computing | Education | IPv4 | 6 |
Inferred from path position, not from any declaration by either party. A network appearing here is carrying these routes; whether that is a paid transit arrangement, a backup, or something else is not something routing data can tell you.
Derived from routing tables collected at 2026-10-30 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.49M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.